For a typical auto, the fraction of the gasoline energy wasted as heat is about
A. 1%
B. 10%
c. 20%
D. 80%
Answer: D. 80%
You might also like to view...
For glucose dissolving in water at 298 K, the diffusivity is 6.9 x 10^-10m^2/s. What do you expect the diffusivity of water in glucose to be?
What will be an ideal response?
Components: A vector in the xy-plane has an x component of -7.50 units. What must be the y component of this vector so that its magnitude is 10.0 units. (Note: There are two possible answers.)
What will be an ideal response?
?Instructions: On occasion, the notation 
will be a shorthand notation for 
.
If vector 
is added to vector 
, the result is a third vector that is perpendicular to and has a magnitude equal to 3. What is the ratio of the magnitude of to that of ?
A. 1.8
B. 2.2
C. 3.2
D. 1.3
E. 1.6
"Time-of-day" pricing of electricity could help to
A) reduce the need for new power plants by encouraging users to use less electric energy. B) reduce the need for new power plants by encouraging users to use electric energy at less popular times. C) reduce the nation's appetite for chocolate fudge. D) reduce total electric energy use by encouraging users to use electric energy at less popular times. E) reduce total electric energy use by encouraging users to use less electric energy.